Dipterological surveys in Portugal unveil 200 species of long-legged flies, with over 170 new to the country (Diptera: Dolichopodidae) Author Pollet, Marc Author Andrade, Rui Author Gonçalves, Ana Author Andrade, Pedro Author Jacinto, Valter Author Almeida, Jorge Author Braekeleer, Anja De Author Calster, Hans Van Author Brosens, Dimitri text Zootaxa 2019 2019-08-01 4649 1 1 69 journal article 25532 10.11646/zootaxa.4649.1.1 5ddee453-14a5-41ea-bd4d-046468d3651f 1175-5326 3357623 F532DBB2-FBC4-41B2-9A5C-D98B55CF8717 64. Hercostomus longiventris (Loew, 1857) (Dolichopodinae) — new to Portugal Number of specimens recorded. 5. Distribution. Europe, but not recorded from Scandinavia, Britain, Ireland nor the Iberian peninsula; also North Africa. Portugal : three northern provinces. Ecology. All Portuguese sampling sites feature canopy by trees and most also open water. Indeed, also in the rest of Europe, the species prefers running water ( e.g ., waterfalls, springs) in deciduous forests ( Pollet 2000 ). Rarity (%). 4.6 (rare). Activity period. April–June.